This is one of those cards that a bit too many players sit on.

The most obvious target to include this card in a leadership deck is Quicksilver, as he can experience turns in which he has 6 basic actions when only using his kit. Giving him more cards where he can take advantage of when he draws Always Be Running is great for him to be a highly versatile character.

But even heroes like Captain America and Cable who can give themselves multiple basic actions, this can be a great card. Wasp on giant form is always looking for stat boosts when you can combo this with Earth's Mightiest Heroes and hand ally activations over to her with her "no waste" attacks and thwarts.

At the end of the day this card does it's job for heroes with good action economy and provides a less situational way to gain the benefit over it's alternatives like Moxie (and in many of the decks I use this in, I utilize both)